Diff Report
Run #519a6b3fa9c9c: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519a6f8ea14bd: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519a6b3fa9c9cRun #519a6f8ea14bdDiffDiff%
Number of Function Calls65 65 0 0.0%
Incl. Wall Time (microsec)15,717 15,404 -313 -2.0%
Incl. Wall Time (microsec) per call 242 237 -5 -2.0%
Excl. Wall Time (microsec)872 838 -34 -3.9%
Incl. CPU (microsecs)13,767 13,572 -195 -1.4%
Incl. CPU (microsecs) per call 212 209 -3 -1.4%
Excl. CPU (microsec)787 758 -29 -3.7%
Incl. MemUse (bytes)1,337,728 1,337,712 -16 -0.0%
Incl. MemUse (bytes) per call 20,580 20,580 -0 -0.0%
Excl. MemUse (bytes)-213,336 -213,328 8 0.0%
Incl. PeakMemUse (bytes)1,355,864 1,365,848 9,984 0.7%
Incl. PeakMemUse (bytes) per call 20,859 21,013 154 0.7%
Excl. PeakMemUse (bytes)3,984 3,984 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem [View Callgraph Diff]


Function NameCalls DiffCalls
Diff%		Incl. Wall
Diff
(microsec)		IWall
Diff%		Incl. CPU Diff
(microsec)		ICpu
Diff%		Incl.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% -313 -26.3% -195 -16.8% -16 -0.1% 9,984 34.2%
Exclusive Metrics Diff for Current Function-34 -10.9% -29 -14.9% 8 50.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -313 -100.0% -195 -100.0% -16 -100.0% 9,984 100.0%
Child functions
unserialize0 N/A% -179 -57.2% -97 -49.7% -24 -150.0% 9,880 99.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -95 -30.4% -62 -31.8% 0 0.0% 104 1.0%
explode0 N/A% -5 -1.6% -7 -3.6% 0 0.0% 0 0.0%